1.Can be used in almost any situation at any time. mostly used in sticky situations when there is an awkward silence to make them laugh.
2. Direct translation means oh yes.
How was your date?
I got dunped.
Oh that sucks.
.....
....
NERHER!!!
In reverse text this phrase .eb ti etom .egdelwonk rof tseuq gnidne-reven a no nerhterb ym na em= me an my brethren on a never-ending quest for knowledge. mote it be.